What is the fastest wind gust in Colorado history? KOAA Graphics and last updated 2021-01-07 12:37:50-05 Have you ever walked outside in Colorado and just wondered, why is it always so windy here?! Let's talk about where all that wind comes from and the current fastest recorded wind gust. Why is it so windy? There are two main reasons for Colorado being so windy: pressure differences over the mountains and plains, and Chinook winds. KOAA Weather Pressure and temperature differences lead to strong winds across the Front Range. A strong, cold high-pressure system moving from the west across the Rockies can generate a damaging wind down the leeward slopes of the mountains, known as a Bora.